iOSDev33

@implementation AppDelegate
void SwapMethodImplementations(Class cls, SEL left_sel, SEL right_sel) {
    Method leftMethod = class_getInstanceMethod(cls, left_sel);
    Method rightMethod = class_getInstanceMethod(cls, right_sel);
    method_exchangeImplementations(leftMethod, rightMethod);
}

+ (void)initialize {
    if (self == [AppDelegate class]) {
#ifdef __IPHONE_6_0